Merge remote-tracking branch 'master' into queue

Merge reason: development work has dependency on kvm patches merged
upstream.

Conflicts:
	arch/powerpc/include/asm/Kbuild
	arch/powerpc/include/asm/kvm_para.h

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

14 files changed, 136 insertions, 76 deletions

diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index ca83a7659aef..82fcb206b5b2 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -14,10 +14,10 @@ config ARCH_OMAP1
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select GENERIC_IRQ_CHIP
-	select IRQ_DOMAIN
 	select HAVE_IDE
-	select NEED_MACH_MEMORY_H
+	select IRQ_DOMAIN
 	select NEED_MACH_IO_H if PCCARD
+	select NEED_MACH_MEMORY_H
 	help
 	  "Systems based on omap7xx, omap15xx or omap16xx"
 
@@ -25,10 +25,11 @@ config ARCH_OMAP2PLUS
 	bool "TI OMAP2/3/4"
 	select CLKDEV_LOOKUP
 	select GENERIC_IRQ_CHIP
-	select SPARSE_IRQ
 	select OMAP_DM_TIMER
-	select USE_OF
+	select PINCTRL
 	select PROC_DEVICETREE if PROC_FS
+	select SPARSE_IRQ
+	select USE_OF
 	help
 	  "Systems based on OMAP2, OMAP3, OMAP4 or OMAP5"
 
@@ -44,10 +45,12 @@ config OMAP_DEBUG_DEVICES
 config OMAP_DEBUG_LEDS
 	def_bool y if NEW_LEDS
 	depends on OMAP_DEBUG_DEVICES
+	select LEDS_CLASS
 
 config POWER_AVS_OMAP
 	bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2"
 	depends on POWER_AVS && (ARCH_OMAP3 || ARCH_OMAP4) && PM
+	select POWER_SUPPLY
 	help
 	  Say Y to enable AVS(Adaptive Voltage Scaling)
 	  support on OMAP containing the version 1 or
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 706b7e29397f..9d7ac20ef8f9 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -312,33 +312,6 @@ void clk_enable_init_clocks(void)
 	}
 }
 
-/**
- * omap_clk_get_by_name - locate OMAP struct clk by its name
- * @name: name of the struct clk to locate
- *
- * Locate an OMAP struct clk by its name.  Assumes that struct clk
- * names are unique.  Returns NULL if not found or a pointer to the
- * struct clk if found.
- */
-struct clk *omap_clk_get_by_name(const char *name)
-{
-	struct clk *c;
-	struct clk *ret = NULL;
-
-	mutex_lock(&clocks_mutex);
-
-	list_for_each_entry(c, &clocks, node) {
-		if (!strcmp(c->name, name)) {
-			ret = c;
-			break;
-		}
-	}
-
-	mutex_unlock(&clocks_mutex);
-
-	return ret;
-}
-
 int omap_clk_enable_autoidle_all(void)
 {
 	struct clk *c;
diff --git a/arch/arm/plat-omap/counter_32k.c b/arch/arm/plat-omap/counter_32k.c
index 2e826f1faf7b..87ba8dd0d791 100644
--- a/arch/arm/plat-omap/counter_32k.c
+++ b/arch/arm/plat-omap/counter_32k.c
@@ -52,22 +52,29 @@ static u32 notrace omap_32k_read_sched_clock(void)
  * nsecs and adds to a monotonically increasing timespec.
  */
 static struct timespec persistent_ts;
-static cycles_t cycles, last_cycles;
+static cycles_t cycles;
 static unsigned int persistent_mult, persistent_shift;
+static DEFINE_SPINLOCK(read_persistent_clock_lock);
+
 static void omap_read_persistent_clock(struct timespec *ts)
 {
 	unsigned long long nsecs;
-	cycles_t delta;
-	struct timespec *tsp = &persistent_ts;
+	cycles_t last_cycles;
+	unsigned long flags;
+
+	spin_lock_irqsave(&read_persistent_clock_lock, flags);
 
 	last_cycles = cycles;
 	cycles = sync32k_cnt_reg ? __raw_readl(sync32k_cnt_reg) : 0;
-	delta = cycles - last_cycles;
 
-	nsecs = clocksource_cyc2ns(delta, persistent_mult, persistent_shift);
+	nsecs = clocksource_cyc2ns(cycles - last_cycles,
+					persistent_mult, persistent_shift);
+
+	timespec_add_ns(&persistent_ts, nsecs);
+
+	*ts = persistent_ts;
 
-	timespec_add_ns(tsp, nsecs);
-	*ts = *tsp;
+	spin_unlock_irqrestore(&read_persistent_clock_lock, flags);
 }
 
 /**
diff --git a/arch/arm/plat-omap/debug-devices.c b/arch/arm/plat-omap/debug-devices.c
index c7a4c0902b38..5a4678edd65a 100644
--- a/arch/arm/plat-omap/debug-devices.c
+++ b/arch/arm/plat-omap/debug-devices.c
@@ -16,6 +16,7 @@
 #include <linux/smc91x.h>
 
 #include <mach/hardware.h>
+#include "../mach-omap2/debug-devices.h"
 
 /* Many OMAP development platforms reuse the same "debug board"; these
  * platforms include H2, H3, H4, and Perseus2.
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index 6013831a043e..a5683a84c6ee 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -26,14 +26,12 @@
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
-#include <linux/i2c-omap.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/clk.h>
 
 #include <mach/irqs.h>
 #include <plat/i2c.h>
-#include <plat/omap-pm.h>
 #include <plat/omap_device.h>
 
 #define OMAP_I2C_SIZE		0x3f
@@ -129,16 +127,6 @@ static inline int omap1_i2c_add_bus(int bus_id)
 
 
 #ifdef CONFIG_ARCH_OMAP2PLUS
-/*
- * XXX This function is a temporary compatibility wrapper - only
- * needed until the I2C driver can be converted to call
- * omap_pm_set_max_dev_wakeup_lat() and handle a return code.
- */
-static void omap_pm_set_max_mpu_wakeup_lat_compat(struct device *dev, long t)
-{
-	omap_pm_set_max_mpu_wakeup_lat(dev, t);
-}
-
 static inline int omap2_i2c_add_bus(int bus_id)
 {
 	int l;
@@ -170,15 +158,6 @@ static inline int omap2_i2c_add_bus(int bus_id)
 	dev_attr = (struct omap_i2c_dev_attr *)oh->dev_attr;
 	pdata->flags = dev_attr->flags;
 
-	/*
-	 * When waiting for completion of a i2c transfer, we need to
-	 * set a wake up latency constraint for the MPU. This is to
-	 * ensure quick enough wakeup from idle, when transfer
-	 * completes.
-	 * Only omap3 has support for constraints
-	 */
-	if (cpu_is_omap34xx())
-		pdata->set_mpu_wkup_lat = omap_pm_set_max_mpu_wakeup_lat_compat;
 	pdev = omap_device_build(name, bus_id, oh, pdata,
 			sizeof(struct omap_i2c_bus_platform_data),
 			NULL, 0, 0);
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 656b9862279e..e2e2d045e428 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -19,6 +19,11 @@ struct module;
 struct clk;
 struct clockdomain;
 
+/* Temporary, needed during the common clock framework conversion */
+#define __clk_get_name(clk)	(clk->name)
+#define __clk_get_parent(clk)	(clk->parent)
+#define __clk_get_rate(clk)	(clk->rate)
+
 /**
  * struct clkops - some clock function pointers
  * @enable: fn ptr that enables the current clock in hardware
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 19e7fa577bd0..85868e98c11c 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -60,6 +60,7 @@
 #define OMAP_TIMER_ALWON				0x40000000
 #define OMAP_TIMER_HAS_PWM				0x20000000
 #define OMAP_TIMER_NEEDS_RESET				0x10000000
+#define OMAP_TIMER_HAS_DSP_IRQ				0x08000000
 
 struct omap_timer_capability_dev_attr {
 	u32 timer_capability;
diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h
index 88be3e628b33..68b5f0362f35 100644
--- a/arch/arm/plat-omap/include/plat/iommu.h
+++ b/arch/arm/plat-omap/include/plat/iommu.h
@@ -103,6 +103,19 @@ struct iommu_functions {
 	ssize_t (*dump_ctx)(struct omap_iommu *obj, char *buf, ssize_t len);
 };
 
+/**
+ * struct omap_mmu_dev_attr - OMAP mmu device attributes for omap_hwmod
+ * @da_start:		device address where the va space starts.
+ * @da_end:		device address where the va space ends.
+ * @nr_tlb_entries:	number of entries supported by the translation
+ *			look-aside buffer (TLB).
+ */
+struct omap_mmu_dev_attr {
+	u32 da_start;
+	u32 da_end;
+	int nr_tlb_entries;
+};
+
 struct iommu_platform_data {
 	const char *name;
 	const char *clk_name;
@@ -126,6 +139,7 @@ struct omap_iommu_arch_data {
 	struct omap_iommu *iommu_dev;
 };
 
+#ifdef CONFIG_IOMMU_API
 /**
  * dev_to_omap_iommu() - retrieves an omap iommu object from a user device
  * @dev: iommu client device
@@ -136,6 +150,7 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
 
 	return arch_data->iommu_dev;
 }
+#endif
 
 /* IOMMU errors */
 #define OMAP_IOMMU_ERR_TLB_MISS		(1 << 0)
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index f4a4cd014795..1957a8516e93 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -40,10 +40,10 @@
 #define OMAP_UART_WER_MOD_WKUP	0X7F
 
 /* Enable XON/XOFF flow control on output */
-#define OMAP_UART_SW_TX		0x8
+#define OMAP_UART_SW_TX		0x04
 
 /* Enable XON/XOFF flow control on input */
-#define OMAP_UART_SW_RX		0x2
+#define OMAP_UART_SW_RX		0x04
 
 #define OMAP_UART_SYSC_RESET	0X07
 #define OMAP_UART_TCR_TRIG	0X0F
diff --git a/arch/arm/plat-omap/include/plat/omap_device.h b/arch/arm/plat-omap/include/plat/omap_device.h
index e7259c0d33ec..106f50665804 100644
--- a/arch/arm/plat-omap/include/plat/omap_device.h
+++ b/arch/arm/plat-omap/include/plat/omap_device.h
@@ -120,6 +120,10 @@ int omap_device_get_context_loss_count(struct platform_device *pdev);
 
 /* Other */
 
+int omap_device_assert_hardreset(struct platform_device *pdev,
+				 const char *name);
+int omap_device_deassert_hardreset(struct platform_device *pdev,
+				 const char *name);
 int omap_device_idle_hwmods(struct omap_device *od);
 int omap_device_enable_hwmods(struct omap_device *od);
 
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 05330735f23f..b3349f7b1a2c 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -2,7 +2,7 @@
  * omap_hwmod macros, structures
  *
  * Copyright (C) 2009-2011 Nokia Corporation
- * Copyright (C) 2011 Texas Instruments, Inc.
+ * Copyright (C) 2012 Texas Instruments, Inc.
  * Paul Walmsley
  *
  * Created in collaboration with (alphabetical order): Benoît Cousson,
@@ -384,21 +384,38 @@ struct omap_hwmod_omap2_prcm {
 	u8 idlest_stdby_bit;
 };
 
+/*
+ * Possible values for struct omap_hwmod_omap4_prcm.flags
+ *
+ * HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT: Some IP blocks don't have a PRCM
+ *     module-level context loss register associated with them; this
+ *     flag bit should be set in those cases
+ */
+#define HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT		(1 << 0)
 
 /**
  * struct omap_hwmod_omap4_prcm - OMAP4-specific PRCM data
  * @clkctrl_reg: PRCM address of the clock control register
  * @rstctrl_reg: address of the XXX_RSTCTRL register located in the PRM
+ * @lostcontext_mask: bitmask for selecting bits from RM_*_CONTEXT register
  * @rstst_reg: (AM33XX only) address of the XXX_RSTST register in the PRM
  * @submodule_wkdep_bit: bit shift of the WKDEP range
+ * @flags: PRCM register capabilities for this IP block
+ *
+ * If @lostcontext_mask is not defined, context loss check code uses
+ * whole register without masking. @lostcontext_mask should only be
+ * defined in cases where @context_offs register is shared by two or
+ * more hwmods.
  */
 struct omap_hwmod_omap4_prcm {
 	u16		clkctrl_offs;
 	u16		rstctrl_offs;
 	u16		rstst_offs;
 	u16		context_offs;
+	u32		lostcontext_mask;
 	u8		submodule_wkdep_bit;
 	u8		modulemode;
+	u8		flags;
 };
 
 
@@ -591,9 +608,7 @@ int omap_hwmod_for_each(int (*fn)(struct omap_hwmod *oh, void *data),
 int __init omap_hwmod_setup_one(const char *name);
 
 int omap_hwmod_enable(struct omap_hwmod *oh);
-int _omap_hwmod_enable(struct omap_hwmod *oh);
 int omap_hwmod_idle(struct omap_hwmod *oh);
-int _omap_hwmod_idle(struct omap_hwmod *oh);
 int omap_hwmod_shutdown(struct omap_hwmod *oh);
 
 int omap_hwmod_assert_hardreset(struct omap_hwmod *oh, const char *name);
@@ -627,11 +642,6 @@ int omap_hwmod_add_initiator_dep(struct omap_hwmod *oh,
 int omap_hwmod_del_initiator_dep(struct omap_hwmod *oh,
 				 struct omap_hwmod *init_oh);
 
-int omap_hwmod_set_clockact_both(struct omap_hwmod *oh);
-int omap_hwmod_set_clockact_main(struct omap_hwmod *oh);
-int omap_hwmod_set_clockact_iclk(struct omap_hwmod *oh);
-int omap_hwmod_set_clockact_none(struct omap_hwmod *oh);
-
 int omap_hwmod_enable_wakeup(struct omap_hwmod *oh);
 int omap_hwmod_disable_wakeup(struct omap_hwmod *oh);
 
diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
index bd20588c356b..87ee140fefaa 100644
--- a/arch/arm/plat-omap/include/plat/usb.h
+++ b/arch/arm/plat-omap/include/plat/usb.h
@@ -4,6 +4,7 @@
 #define	__ASM_ARCH_OMAP_USB_H
 
 #include <linux/io.h>
+#include <linux/platform_device.h>
 #include <linux/usb/musb.h>
 
 #define OMAP3_HS_USB_PORTS	3
@@ -63,6 +64,10 @@ struct usbhs_omap_platform_data {
 	struct ehci_hcd_omap_platform_data	*ehci_data;
 	struct ohci_hcd_omap_platform_data	*ohci_data;
 };
+
+struct usbtll_omap_platform_data {
+	enum usbhs_omap_port_mode		port_mode[OMAP3_HS_USB_PORTS];
+};
 /*-------------------------------------------------------------------------*/
 
 struct omap_musb_board_data {
@@ -81,6 +86,8 @@ enum musb_interface    {MUSB_INTERFACE_ULPI, MUSB_INTERFACE_UTMI};
 extern void usb_musb_init(struct omap_musb_board_data *board_data);
 
 extern void usbhs_init(const struct usbhs_omap_board_data *pdata);
+extern int omap_tll_enable(void);
+extern int omap_tll_disable(void);
 
 extern int omap4430_phy_power(struct device *dev, int ID, int on);
 extern int omap4430_phy_set_clk(struct device *dev, int on);
diff --git a/arch/arm/plat-omap/omap-pm-noop.c b/arch/arm/plat-omap/omap-pm-noop.c
index 9f6413324df9..9722f418ae1f 100644
--- a/arch/arm/plat-omap/omap-pm-noop.c
+++ b/arch/arm/plat-omap/omap-pm-noop.c
@@ -38,7 +38,7 @@ int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t)
 	if (!dev || t < -1) {
 		WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__);
 		return -EINVAL;
-	};
+	}
 
 	if (t == -1)
 		pr_debug("OMAP PM: remove max MPU wakeup latency constraint: dev %s\n",
@@ -67,7 +67,7 @@ int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r)
 	    agent_id != OCP_TARGET_AGENT)) {
 		WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__);
 		return -EINVAL;
-	};
+	}
 
 	if (r == 0)
 		pr_debug("OMAP PM: remove min bus tput constraint: dev %s for agent_id %d\n",
@@ -93,7 +93,7 @@ int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev,
 	if (!req_dev || !dev || t < -1) {
 		WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__);
 		return -EINVAL;
-	};
+	}
 
 	if (t == -1)
 		pr_debug("OMAP PM: remove max device latency constraint: dev %s\n",
@@ -123,7 +123,7 @@ int omap_pm_set_max_sdma_lat(struct device *dev, long t)
 	if (!dev || t < -1) {
 		WARN(1, "OMAP PM: %s: invalid parameter(s)", __func__);
 		return -EINVAL;
-	};
+	}
 
 	if (t == -1)
 		pr_debug("OMAP PM: remove max DMA latency constraint: dev %s\n",
diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index d5f617c542d3..7a7d1f2a65e9 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -261,10 +261,10 @@ static void _add_clkdev(struct omap_device *od, const char *clk_alias,
 		return;
 	}
 
-	r = omap_clk_get_by_name(clk_name);
+	r = clk_get(NULL, clk_name);
 	if (IS_ERR(r)) {
 		dev_err(&od->pdev->dev,
-			"omap_clk_get_by_name for %s failed\n", clk_name);
+			"clk_get for %s failed\n", clk_name);
 		return;
 	}
 
@@ -725,7 +725,7 @@ struct platform_device __init *omap_device_build_ss(const char *pdev_name, int p
 		dev_set_name(&pdev->dev, "%s", pdev->name);
 
 	od = omap_device_alloc(pdev, ohs, oh_cnt, pm_lats, pm_lats_cnt);
-	if (!od)
+	if (IS_ERR(od))
 		goto odbs_exit1;
 
 	ret = platform_device_add_data(pdev, pdata, pdata_len);
@@ -983,6 +983,61 @@ int omap_device_shutdown(struct platform_device *pdev)
 }
 
 /**
+ * omap_device_assert_hardreset - set a device's hardreset line
+ * @pdev: struct platform_device * to reset
+ * @name: const char * name of the reset line
+ *
+ * Set the hardreset line identified by @name on the IP blocks
+ * associated with the hwmods backing the platform_device @pdev.  All
+ * of the hwmods associated with @pdev must have the same hardreset
+ * line linked to them for this to work.  Passes along the return value
+ * of omap_hwmod_assert_hardreset() in the event of any failure, or
+ * returns 0 upon success.
+ */
+int omap_device_assert_hardreset(struct platform_device *pdev, const char *name)
+{
+	struct omap_device *od = to_omap_device(pdev);
+	int ret = 0;
+	int i;
+
+	for (i = 0; i < od->hwmods_cnt; i++) {
+		ret = omap_hwmod_assert_hardreset(od->hwmods[i], name);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}
+
+/**
+ * omap_device_deassert_hardreset - release a device's hardreset line
+ * @pdev: struct platform_device * to reset
+ * @name: const char * name of the reset line
+ *
+ * Release the hardreset line identified by @name on the IP blocks
+ * associated with the hwmods backing the platform_device @pdev.  All
+ * of the hwmods associated with @pdev must have the same hardreset
+ * line linked to them for this to work.  Passes along the return
+ * value of omap_hwmod_deassert_hardreset() in the event of any
+ * failure, or returns 0 upon success.
+ */
+int omap_device_deassert_hardreset(struct platform_device *pdev,
+				   const char *name)
+{
+	struct omap_device *od = to_omap_device(pdev);
+	int ret = 0;
+	int i;
+
+	for (i = 0; i < od->hwmods_cnt; i++) {
+		ret = omap_hwmod_deassert_hardreset(od->hwmods[i], name);
+		if (ret)
+			break;
+	}
+
+	return ret;
+}
+
+/**
  * omap_device_align_pm_lat - activate/deactivate device to match wakeup lat lim
  * @od: struct omap_device *
  *